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Related to Nagyagite: Calaverite


n.1.(Min.) A mineral of blackish lead-gray color and metallic luster, generally of a foliated massive structure; foliated tellurium. It is a telluride of lead and gold.
References in periodicals archive ?
Nagyagite from the Emperor mine has been known since the 1944 edition of Dana's System of Mineralogy, but has not been reported since then.
According to De Montreuil's publication, gold is found as tellurides or nagyagite in some deposits [2].
Ore minerals make up 1-3% of the rock; pyrite with lesser scheelite, chal-copyrite, galena, sphalerite, and traces of gold-silver tellurides (petzite-hessite, nagyagite, etc.).
Nagyagite [Pb.sub.5]Au(Sb,Bi)[Te.sub.2][S.sub.6] (OV)